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Assigning a scan frame

From: Scanning Techniques for Photography, Art, and Design

Video: Assigning a scan frame

After you've performed your pre-scan the next order of business is really setting your scan frame of your image. Whether you're doing an automatic or a manual scan now is a good time to go ahead and set the scan frame. The scan frame is this outlined red area here. What that designates is the actual portion or area of the image is going to be scanned when you finally click that ultimate Scan button when you're all set up. You can actually set the color of this in your options. You probably want to start for just a manual kind of get close to where you want it.

Assigning a scan frame

After you've performed your pre-scan the next order of business is really setting your scan frame of your image. Whether you're doing an automatic or a manual scan now is a good time to go ahead and set the scan frame. The scan frame is this outlined red area here. What that designates is the actual portion or area of the image is going to be scanned when you finally click that ultimate Scan button when you're all set up. You can actually set the color of this in your options. You probably want to start for just a manual kind of get close to where you want it.

Let's say if we wanted to 5x7 scan, you can just manually drag it over there with the default settings. With the default settings this is the area where you're really going to be designated the scan frame and you can see the results of any resizing that you do here. You'll watch these numbers here and here at the original and then the output will change. So you get it close to what you want. Then you can move over here and you can get it exactly right if you want to. Let's take a look at a couple of different scenarios.

Let's say that you wanted your original frame to be 5x7 and you will find these fields to be a little squirrely sometimes. They seem to change on their own. they have a mind of their own. If you put in 5.0 and 7.0 instead of just 5.7, you'll have better luck. Watch to the scan frame over here. I'm going to Shift+Tab to move backward. You can Tab from one field to the other. If I go 4 point and as soon as I hit the point that red line comes to move in. Sometimes it moves in without the point, sometimes it doesn't, but the point always helps.

If I go over 6, notice it didn't move that time and then point, then it actually moves up. So I'm going to hit that point that kind of tells that red scan frame to actually move. So Shift+Tab move about here. We'll go 5. And see how it moves and then 7.0. So go ahead and just put in the whole number and be sure to use that point even if you using full numbers. Then I'm going to Tab forward here, and I'm going to 5.0, Tab 7.0.

Notice we are at 100 and 100. Then what I like to do as soon as I set my output. See this is the size of the original frame here and then this is going to be the output dimensions of the final image. Then I'm going to click on these two and it holds that in position. It holds that output at 5x7. So no more interpolation will occur. Whatever we scan that's what's going to be held. Notice that I can then move my scan image anywhere that I want to. So if I were to move that down here I'd get part of this white area that actually be captured.

So by clicking on these locks, it locks that frame area. Sometimes depending upon the dimensions in the image you may want to actually zoom out a little bit so that you can see that scan frame location. Remember to use that multiple or higher-resolution prescan to give you that capability without having to rescan the image. Just another scenario. let's unlock this again. Let's say you wanted to change from the 5x7 format and you wanted to go to 8x10. So we started with a 4.0 and then a 5.0 and then we wanted to output this at 8.0 and 10 and notice do you see this little proportion here. That's turned on.

It's turned on by default and generally you want that turned on. Otherwise, you'll get non- proportional scaling which is not a good thing. Notice when I put in the 8 the 10 automatically filled itself in here. Now when I click these see I've set a 4 inch by 5 inch original frame. Now I can move this around anywhere I want to. When I complete the scan I'll end up with an 8x10 image. This framing and scaling data here interacts with the resolution data that you see down here and we'll discuss that in the next movie.

One side note to mention about setting your scan frame and this may happen to you where we've placed a 5x7 image down on the scan bed. In this case a flatbed scanner with a glass platen. If we nudged it all the way up to the top to get the top edge of the image, square with the top edge of the scan platen and then we place the 5x7 scan frame in the image and then we scanned it we end up with this little white space down here at the bottom and that's because on some scanners, and this particular one as well, the scanner doesn't quite read all the way to the edge of the scan platen and that can be a little frustrating if you want to get the entire 5x7 image.

So what you can do is what I've done here is I've actually taken the image and I've offset it from the top of the scanner and the easy way to do that just take a short straightedge ruler, usually a metal ruler works best, and just lay the ruler parallel to the top edge of the scan platen and then nudge the image up against it. As you can see down here in my prescan I placed little piece of light stick tape down at bottom to hold it in place. So this edge is still perfectly parallel to the top edge and these edges are parallel to the side edges.

I've just offset it using my ruler in the nudged this edge up to the top of the ruler. Then when we set our scan frame and we complete our scan, we'll just call this a Test scan, we end up with an image instead of having that little white area in the bottom. we've actually captured the entire 5x7 image. So you may have to do that on some of your scanner beds. It's a less of a problem with dedicated thumb scanner, because they're right inside their holders. You just get a steel flat edge and it works best if it's a short one.

So doesn't overlap the edges of the scanner body itself from the glass scanner platen.

Show transcript

This video is part of

Image for Scanning Techniques for Photography, Art, and Design
Scanning Techniques for Photography, Art, and Design

58 video lessons · 8388 viewers

Taz Tally
Author

 
Expand all | Collapse all
  1. 6m 48s
    1. Welcome
      1m 11s
    2. What you should know before watching this course
      3m 54s
    3. Using the exercise files
      1m 43s
  2. 1h 0m
    1. Scanners and digital cameras
      3m 6s
    2. Types of scanners
      5m 2s
    3. Scanner location
      3m 19s
    4. What scanners and digital cameras create
      7m 22s
    5. Understanding grayscale values and channels
      3m 19s
    6. Understanding pixels and vectors
      4m 1s
    7. Choosing pixels or vectors
      2m 27s
    8. Resolving resolution
      6m 32s
    9. Working with interpolation
      3m 31s
    10. Understanding the effects of compression
      2m 4s
    11. Evaluating and correcting images with histograms
      8m 26s
    12. Saving to different file formats
      7m 4s
    13. Color management
      4m 23s
  3. 33m 22s
    1. Cleaning your scanner
      7m 31s
    2. Cleaning your images
      7m 47s
    3. Calibrating your scanner
      9m 13s
    4. Creating and applying a color management profile
      8m 51s
  4. 20m 55s
    1. Evaluating your scan challenges
      9m 46s
    2. Reproducing vs. assigning colors
      6m 20s
    3. Recognizing continuous tone (contone) vs. dot pattern images
      4m 49s
  5. 36m 32s
    1. Understanding bit depth
      8m 49s
    2. Selecting a scan mode
      8m 20s
    3. Sharpening and its effects
      10m 40s
    4. Creating and assigning color management profiles
      8m 43s
  6. 2h 25m
    1. Taking the Tazmanian Oath!
      3m 38s
    2. Choosing your weapon
      4m 2s
    3. Setting up your scanning preferences
      12m 14s
    4. Performing a prescan
      2m 53s
    5. Assigning a scan frame
      5m 40s
    6. Determining scan resolution
      7m 57s
    7. Choosing a scan mode and bit depth
      5m 53s
    8. Naming images
      1m 49s
    9. Scanning simple logos and line art
      12m 21s
    10. Scanning complex line art
      7m 33s
    11. Scanning grayscale contones
      13m 22s
    12. Scanning color contones
      13m 54s
    13. Sharpening
      9m 39s
    14. Scanning printed/screened or patterned images
      7m 1s
    15. Scanning positive transparency film
      12m 33s
    16. Scanning negative transparency film
      9m 11s
    17. Capturing high dynamic range (HDR) scans
      1m 47s
    18. Setting up wet scans
      14m 29s
  7. 1h 48m
    1. Scanning, converting, and using simple line art
      5m 32s
    2. Scanning and using detailed line art
      10m 52s
    3. Scanning landscapes
      15m 50s
    4. Scanning product shots
      11m 58s
    5. Scanning combo/complex images
      9m 3s
    6. Adjusting distressed images
      11m 12s
    7. Scanning images with no neutrals
      11m 57s
    8. Post-scan touch-ups
      2m 7s
    9. Scanning images for multiple uses
      10m 44s
    10. Automatic scanning
      10m 40s
    11. Streamlining big jobs with batch scanning
      5m 22s
    12. Using your manufacturer's scanning software
      3m 14s
  8. 27s
    1. Goodbye
      27s

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